<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="btn">点我获取地理位置</div>
  <script>
    let btn = document.getElementById('btn')
    btn.onclick = function () {
      window.navigator.geolocation.getCurrentPosition(position => {
        console.log(position);
      })
    }
  </script>

</body>

</html>